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Can someone give me a quick description of why one breathes faster during or after exercise?

If I'm not mistaken, it's the body's way of replenishing oxygen to the blood, which in turn can distribute additional energy and nutrients to the muscles, vital organs, etc. I hope that answers your question.

Speaking of exercise, I'm still sore from my health lab yesterday... Thank goodness I only have one more round of torture tomorrow, and then I'm done with health class for good.

If I'm not mistaken, it's the body's way of replenishing oxygen to the blood, which in turn can distribute additional energy and nutrients to the muscles, vital organs, etc. I hope that answers your question.

Speaking of exercise, I'm still sore from my health lab yesterday... Thank goodness I only have one more round of torture tomorrow, and then I'm done with health class for good.

You're sorta half-right. But you start breathing heavily before your oxygen stores get lowered, and that's because your body is anticipating the need to get rid of carbon dioxide (because of the eventual lactic acid formation; getting rid of carbon dioxide raises your blood's pH, so you can tolerate more acid buildup). Both are important, obviously, but getting rid of carbon dioxide and keeping the blood's pH balanced is a slightly more "right" answer. Unless, of course, my physiology professor was lying, in which case, this whole thing is up in the air.

When I decided to take that class, I thought it would be fun. I was completely wrong.

I'm probably failing chemistry right now, which sucks because its bringing down my GPA, along with god damn orchestra class. I made the top ten in my class last year, and it would be humiliating not to make the top ten again because of those classes.

Also, I know I've said this before, but I'm going to say it again: FUCK TRIGONOMETRY

You're sorta half-right. But you start breathing heavily before your oxygen stores get lowered, and that's because your body is anticipating the need to get rid of carbon dioxide (because of the eventual lactic acid formation; getting rid of carbon dioxide raises your blood's pH, so you can tolerate more acid buildup). Both are important, obviously, but getting rid of carbon dioxide and keeping the blood's pH balanced is a slightly more "right" answer. Unless, of course, my physiology professor was lying, in which case, this whole thing is up in the air.

Thanks for the clarification. I knew it was more complex than my explanation (haven't taken any physiology, although I'm sure I'll learn more about this stuff when I get further into my biology classes).

Originally Posted by vespiqueen

Once again, Chemistry is kicking my *** ):

Do any of you that take Chemistry actually like it?

I do; I find it fascinating, and I feel it gives me a better understanding of how the world works, limited as my knowledge may be. However, I should mention that I'm taking a fairly basic class, so my opinion might change later on. XD

Wait, so in the US you can drop old subjects and take new ones at will every year or something?

Well, we get to choose a number of our classes each year starting high school, or even earlier. Though some classes, like English, History and Math, must be taken during certain years, and the class you can take depends on your abilities in that subject. Science classes are usually elective class where I go, but a few years of science is needed to graduate.

*Limited activity for the next few weeks, ask another mod if you need mod assistance as otherwise I'll be slow to respond to messages*

I used to like it at first, it was pretty cool, but then I met...AP CHEMISTRY
and after the first semester (stuff was pretty easy early on) it was just hours of verbal abuse and frustration, since our teacher kind of gave up too.
I preferred physics and biology much more, but my favorite is always geology (too bad my mom won't let me have a career related to it)

Originally Posted by gustavo 14

Well, we get to choose a number of our classes each year starting high school, or even earlier. Though some classes, like English, History and Math, must be taken during certain years, and the class you can take depends on your abilities in that subject. Science classes are usually elective class where I go, but a few years of science is needed to graduate.

Except in my school, they force students to take AP classes, which are supposed to be electives >_> I remember people with 60s on the regents getting into AP Chemistry, it was pure bs

I used to like it at first, it was pretty cool, but then I met...AP CHEMISTRY
and after the first semester (stuff was pretty easy early on) it was just hours of verbal abuse and frustration, since our teacher kind of gave up too.
I preferred physics and biology much more, but my favorite is always geology (too bad my mom won't let me have a career related to it)

Especially since you haven't been the first to say it, I'm really getting nervous about second semester in AP Chemistry now. I mean, I'm fantastic in this subject, but when so many people make it out to be so bad, my teacher included, it really doesn't make it look great.

Except in my school, they force students to take AP classes, which are supposed to be electives >_> I remember people with 60s on the regents getting into AP Chemistry, it was pure bs

Looks like you aren't the first to say it, since I remember a few conversations on that problem with AP classes. I really don't know why they wouldn't offer normal level classes, especially since AP is meant to challenge students who want to learn more and understand a bit about early college courses.

*Limited activity for the next few weeks, ask another mod if you need mod assistance as otherwise I'll be slow to respond to messages*

Especially since you haven't been the first to say it, I'm really getting nervous about second semester in AP Chemistry now. I mean, I'm fantastic in this subject, but when so many people make it out to be so bad, my teacher included, it really doesn't make it look great.

Looks like you aren't the first to say it, since I remember a few conversations on that problem with AP classes. I really don't know why they wouldn't offer normal level classes, especially since AP is meant to challenge students who want to learn more and understand a bit about early college courses.

Well, for me, my teacher was pretty inexperienced too, it was his first year so yeah. I got a 2 on the exam and sadly, that was like the 2nd-3rd highest. This guy got a 4 but he studied all by himself, and only came to class for tests. And yeah, I really don't get it either. Most AP classes I had rather had inexperienced teachers or a subject I'm weak at. AP Human Geo teacher was a loony, AP Chemistry teacher was inexperienced, and AP US teacher is almost as bad as the AP Human Geo teacher. The worse part is that our school has a well qualified AP US teacher, but then he didn't teach the year I started (they also made AP US two years for some strange reason). My AP English teacher was actually good though, but then I completely messed up on exam day, then again, english really isn't my subject. My AP Bio teacher isn't bad either for now, and I had her for anatomy and was not too bad then either.

Random thought, but in the 8th grade, 9 or so years ago, my pre-algebra teacher gave us homework every week, and he never took it up, but during the last week of the year, he said to the class "turn in all of the homework we have done this year."

I turned in 1 piece of paper with maybe 10 problems written down on it, when it actually should've been well over 100 problems. I ended up getting a C in the class. I always did good on the tests, but I was just so lazy. Ever since then I've hated math, and I have to take freakin' calculus next semester in college.

For Higher Chinese, we have to do a review of any stories inside this specific book, filled with many short, miscellaneous and somewhat random stories. After reading through it all (and by that, I mean the "Contents" page), I decided to go with some short story about the History and Significance of Chopsticks. Yeah. This should be interesting.

I have discovered my one forte in Drama - voice acting, according to my teacher. I suddenly felt really happy when I first heard that (justified by the fact that I suck at pretty much everything else).